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EnginePart report

2018 Chevrolet Volt Engine Problems

Complaints
50about this part
Share
22%of 226 total for the year
Median mileage
31,562miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 50 complaints about the engine of the 2018 Chevrolet Volt, 22% of the 226 complaints for this model year. Where a mileage was given, the median is 31,562 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Car is consistently making a burning smell and the dealer is refusing to acknowledge it. I went there 2000 miles ago, they claimed it was a break in smell. The smell is still there and once again they are calling it a break in smell. I mean the car has 8400 miles. How long does it have to break in for? Nhtsa, please step in and help us. Gm is creating this possible fire hazard and their franchises are not helping.”

NHTSA complaint #11209797, filed 2019-05, 8,350 miles

“When my gas engine is warmed up and up to operating temperature, there would be this burnt plastic smell coming from under the hood. It's been happening like this for the past 3000 miles or so. It's a clear burnt plastic smell from under the hood, and it is always after the engine is completely warmed up. I use my gas engine all the time. The dealership claims it is normal for hybrid to burn stuff off as it isn't run all the time, but the car has 6700 miles. It's a stretch to blame it on break in oil. …”

NHTSA complaint #11194126, filed 2019-04, 4,000 miles

“Vehicle will not turn off on a regular basis.. Receive a message that reads: 'action required. Shift to park.' when this occurs, the vehicle can not be turned off or locked. Researched this problem on the internet and discovered that it is a very common problem that affects nearly all 2016, 2017 and 2018 Chevrolet volts. A recall should be implemented!”

NHTSA complaint #11376164, filed 2020-11, 76,493 miles

“While driving the vehicle at around 60 MPH, the 'check engine' light came on and a message saying 'shift to park' appears on the dashboard. Once the vehicle was stopped at the traffic light, the driver shifted to park and was not able to pull down to drive again. Vehicle was stranded in the middle of the road while cars were approaching from behind with high speed. After repeated attempts to press the vehicle 'start' button, we finally were able to pull down to neutral and pushed the vehicle to the side of the road. Vehicle needed to be towed to dealership for diagnosis.”

NHTSA complaint #11142769, filed 2018-10, 2,800 miles

“EGR valve clogged and failed on a long trip, bricked the car and had to tow many miles back to home shop. now have been waiting 9 months and still no idea when the part will be available from Chevrolet. My shop and I have claims to Chevrolet for the part for service but still nothing and is getting so we are inconvenienced in travel.”

NHTSA complaint #11642345, filed 2025-02

Related service bulletins

Engine: other model years

YearComplaintsShare of year
201939%
20185022%
201718426%
20164828%
2015818%
2014910%
20133712%
20122611%
201148%

Other parts of the 2018 Chevrolet Volt

Electrical system
88 complaints
Transmission and drivetrain
85 complaints
Fuel system
75 complaints
Other or unknown
42 complaints
Brakes
9 complaints
Vehicle speed control
8 complaints
Steering
5 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Air bags
2 complaints
Engine cooling
2 complaints
Body and structure
2 complaints
Electronic stability control
1 complaints

← All problems reported for the 2018 Chevrolet Volt

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology